Wrapping roll device in coin wrapping machine

ABSTRACT

At least one of the wrapping rolls in a coin-wrapping machine has a reduced-diameter part intermediate between its ends, two full-diameter parts thereby being left to project partially inward through respective cut-out openings in a corresponding wrapping-paper guide plate, a guide bridge being left uncut in the guide plate between the openings, and the outer peripheral surface of the reduced-diameter part is positioned to confront the outer surface of the guide bridge, the inner surface of which functions to guide the leading edge of the wrapping paper and thereby to prevent the leading edge from entering and becoming caught in the openings.

United States Patent [191 Itoda et a1.

[ June 26, 1973 WRAPPING ROLL DEVICE IN COIN-WRAPPING MACHINE [73] Assignee: Kabushiki Kalsha Kokuei Kikai Seisakuaho, Hyogo-ken, Japan [22] Filed: June 28, 1971 [21] Appl. No.: 157,266

[30] Foreign Application Priority Data July 1, 1970 Japan 2 [52] US. Cl. 53/212 [51] Int. Cl B651) 11/02 [58] Field of Search 53/211, 212, 216

Primary Examiner-Travis S. McGehee Assistant Examiner-John Sipos Attorney-Holman & Stern 5 7] ABSTRACT At least one of the wrapping rolls in a coin-wrapping machine has a reduced-diameter part intermediate between its ends, two full-diameter parts thereby being left to project partially inward through respective cutout openings in a corresponding wrapping-paper guide plate, a guide bridge being left uncut in the guide plate between the openings, and the outer peripheral surface of the reduced-diameter part is positioned to confront the outer surface of the guide bridge, the inner surface of which functions to guide the leading edge of the wrapping paper and thereby to prevent the leading edge from entering and becoming caught in the openmgs.

1 Claim, 4 Drawing Figures WRAPPING ROLL DEVICE IN COIN-WRAPPING MACHINE BACKGROUND OF THE INVENTION This invention relates generally to coin-wrapping devices and machines and more particularly to a new and advanced wrapping roll device in a coin-wrapping machine of the type wherein a piece of ribbon-like wrapping paper is wrapped around the peripheral surface of a stack of a specific number of coins, and the rim edges of the wrapped paper extending beyond the ends of the coin stack are crimped inward and over thereby to produce a package of wrapped coins.

PRIOR ART In a known coin-wrapping machine of the class referred to above, a stack of coins is clampedand rotated between three rotating wrapping rolls, and the Veeshaped leading point of a piece of wrapping paper is guided to the outer peripheral surface of this coin stack and wrapped therearound. For this reason, an arrangement of parts wherein the wrapping rolls are disposed to project partly through cut-out openings in curved guide plates for wrapping paper is used. This arrangement, however, is disadvantageous in that the Veeshaped leading point of the paper tends to be caught in the gap between a wrapping roll and the edge of the cut-out opening of the corresponding guide plate, whereby the wrapping operation cannot be carried out smoothly.

SUMMARY OF THE INVENTION It is an object of this invention to provide a new and advanced wrapping roll device in a coin-wrapping ma-' chine whereby entrance of the leading edge of a sheet of wrapping paper into a cut-out opening in a guide plate is prevented, and the coin-wrapping operation can thereby be accomplished in a smooth manner.

According to this invention, briefly summarized, there is provided a wrapping roll device in a coinwrapping machine of the type having a plurality of wrapping rolls for clamping and rotating a stack of coins and, moreover, for winding 21 piece of wrapping paper around the stack, which device comprises the wrapping rolls and respective wrapping paper guide plates, at least one of the wrapping rolls being provided at a middle part thereof with a reduced-diameter part dividing the roll into two full-diameter parts projecting partially inward through respective cut-out openings in the corresponding guide plate, a guide bridge being left uncut in the guide plate between the openings, the outer peripheral surface of the reduced-diameter part being positioned at the outer surface of the guide bridge, the inner surface of which functions to guide the leading part of the wrapping paper and thereby to prevent the leading part from entering the openings and becoming caught.

The nature, details, and utility of this invention will be more clearly apparent from the following detailed description with respect to a preferred embodiment of the invention when read in conjunction with the accompanying drawing, in which like parts are designated by like reference numerals.

BRIEF DESCRIPTION OF THE DRAWING In the drawing:

FIG. 1 is a plan view showing the essential parts of one example of a coin-wrapping mechanism to which this invention is applied;

FIG. 2 is a slightly enlarged plan view showing a first wrapping roll and guide plate of the mechanism shown in FIG. 1;

FIG. 3 is an elevation orthogonal to FIG. 2 as viewed upward in FIG. 2; and

FIG. 4 is a perspective view of the wrapping roll and guide plate shown in FIGS. 2 and 3.

DETAILED DESCRIPTION The coin-wrapping mechanism illustrated in FIG. 1 has three parallel wrapping rolls 1, 2, and 3 disposed vertically with spaced-apart relation on a common circle in a horizontal plane. At least the roll 1 of these wrapping rolls has a part 4 of reduced diameter at a position slightly below the middle part of the roll as shown in FIGS. 2 and 4. This reduced-diameter part 4, which forms an annulargroove around the roll, thereby divides the roll 1 into upper and lower parts 8 and 9 of relatively large diameter.

In the assembled state of the mechanism shown in FIG. 1, a wrapping paper guide plate 5 having a curved substantially arcuate shape in cross sections in horizontal planes is positioned on the inner side of this wrapping roll 1. This guide plate 5, which is fixed in position and has a concave inner side, has upper and lower cutout openings 6 and 7 separated by a guide bridge 10. The upper and lower parts 8 and 9 of the roll 1 are partially fitted into and through these openings 6 and 7, respectively, projecting inward beyond the inner surface of the guide plate 5. The outer periphery of the part 4 of reduced diameter is disposed on the outer side of the guide bridge 10.

The wrapping rolls 2 and 3 have their shafts l1 and 12, respectively and rotatable members 13 and 14 are pivotally supported on the upper and lower parts of the shafts 11 and 12, respectively. An arcuate guide plate 15 is supported at its upper and lower parts by the rotatable member 13 and an arcuate plate 16 is supported at its upper and lower parts by the rotatable member 14. The rotatable members 13 and 14 are provided with tensile return springs 17 and 18 urging these members 13 and 14 to rotate in the counterclockwise direction (as viewed in FIG. 1).

The distal end of the arcuate guide plate 15 is positioned on the inner side of the neighboring edge of the fixed guide plate 5. A lever member 20 fixed at its proximal end to a rotatable shaft 19 is rotatably connected at another part thereof to the shaft 11 of the second wrapping roll 2. A wrapping paper guide piece 21 formed on one side of this lever member 20 is positioned on the outer side of the neighboring edge on one side of the arcuate guide plate 16,

One end of an actuating member 22 is pivotally engaged with the shaft 19, and an adjusting member 24 adapted to adjust the position of the roll 2 is fixed to the shaft 19 and engaged with the actuating member by means of an adjusting piece 23 such as a screw. The actuating member 22 is provided thereon with a cam follower roller 25 which is engaged with a cam 27 fixedly supported by a cam shaft 26.

The mechanism of the above described organization operates as follows. Upon stock of a predetermined number of coins in the space between the wrapping rolls 1, 2, and 3, the actuating member 22 is caused Substantially simultaneously to rotate clockwise about the shaft 19 due to clockwise rotation (arrow direction) of the cam 27. At this instant, the adjusting member 24 also turns clockwise together with about the shaft 19 because the adjusting member 24 is integrally engaged with the actuating member 22 by means of the adjusting piece 23.

As a result of the turning of the adjusting member 24 together with the shaft 19, the lever member 20 fixed to the shaft 19 is moved up-leftward (as viewed in FIG. 1), whereby the roll 2 shaft-supported by the lever member 20 is moved up-leftward together with the shaft 11 and the same time, the guide plate 15 supported by the rotatable member 13 is subjected to a small clockwise rotational movement (arrow direction) along the inner surface of the fixed arcuate guide plate against the force of the spring 17, and the guide plate 16 supported by the rotatable member 14 is pushed by the guide piece 21 of the lever member 20 thereby to cause some clockwise turning of the guide plate 16 against the force of the spring 18. In such a manner as mentioned above, the arcuate guide plates 5, l5, and 16 assume a substantially circular formation and the coin stack is clamped by and between the three wrapping rolls 1, 2 and 3.

At the same time, the Vee-shaped leading end of a wrapping paper is brought to the roll 3 and is then successively drawn by rolls 2 and 1 along the inner surfaces of the guide plates and 5, whereby the wrapping paper is wrapped around the stacked coins.

In this operation, the Vee-shaped leading end of the wrapping paper is prevented by the guide bridge 10 of the guide plate 5 at the position of the wrapping roll 1 from being caught in the gaps between the edges of the cut-out openings 6 and 7 and the roll 2 and thereby being forced to exit to the outer side of the guide plate. Thus, the Vee-syape leading end of the wrapping paper is smoothly wound along the peripheral surface of the coin stack.

Next, the upper and lower rim edges of the cylindrical shape of wrapped paper extending upward and downward beyond the ends of the coin stack are crimped or folded inward and over by an edge-folding mechanism (not shown) whereby the upper and lower ends of the coin stack are secured in retained state, whereupon the wrapping step is completed.

Thereafter, the edge-folding mechanism is moved away from the wrapped coin stack by the action of the cam 27, and the wrapping roll 2 is retracted. The arcuate guide plates are moved outward by return springs,

and the wrapped coin state is removed from this wrapping mechanism.

It should be understood, of course, that the foregoing disclosure relates to to only one specific example of preferred embodiment of the invention, and that this invention is not limited in organization thereto.

For example, in the above described example, the reduced-diameter part 4 is formed on only the wrapping roll 1, and the full-diameter parts 8 and 9 of the roll are partially fitted into and through the cut-out openings 6 and 7 in the guide plate 5, the reduced-diameter part 4 being positioned on the outer side of the guide bridge 10 of the guide plate 5. However, it is also possible to provide each of the guide plates 15 and 16 also with upper and lower cut-out openings with a guide bridge interposed therebetween and the other wrapping rolls 2 and 3 also with reduced-diameter parts and to project the resulting full-diameter parts of the rolls through the cut-out openings similarly as in the combination of the guide plate 5 and wrapping rolls 2 and 3.

Thus, through the use of the wrapping roll device of the above described organization according to this invention, the guide bridge 10 of the guide plate prevents the leading end or edge of the wrapping paper from entering and being caught into the gap between the edge of the cut-out opening of the guide plate and the roll to be thrust toward the outer side of the guide plate, whereby it is possible to wrap the piece of wrapping paper positively and accurately around the peripheral surface of the coin stack.

We claim:

1. In a wrapping roll device in a coin-wrapping machine having a plurality of wrapping rolls for clamping and rotating a stack of coins and for winding a piece of wrapping paper around the stack, the improvement wherein a wrapping paper guide plate is provided for each roll for guiding the wrapping paper around the stack, and at least one of the wrapping rolls is provided at a middle part thereof with a reduced-diameter part dividing the roll into full-diameter parts projecting partially inward through respective cutout openings in the corresponding guide plate, a guide bridge being left uncut in the guide plate between the openings, the outer peripheral surface of the reduced-diameter part being positioned at the outer surface of the guide bridge, and the inner surface of the guide bridge functioning to guide the leading part of the wrapping paper and thereby to prevent said leading part from entering said opening. 

1. In a wrapping roll device in a coin-wrapping machine having a plurality of wrapping rolls for clamping and rotating a stack of coins and for winding a piece of wrapping paper around the stack, the improvement wherein a wrapping paper guide plate is provided for each roll for guiding the wrapping paper around the stack, and at least one of the wrapping rolls is provided at a middle part thereof with a reduced-diameter part dividing the roll into full-diameter partS projecting partially inward through respective cutout openings in the corresponding guide plate, a guide bridge being left uncut in the guide plate between the openings, the outer peripheral surface of the reduced-diameter part being positioned at the outer surface of the guide bridge, and the inner surface of the guide bridge functioning to guide the leading part of the wrapping paper and thereby to prevent said leading part from entering said opening. 